Here is another solar Bluetooth speaker ready for your outdoor activities. The Haveone Solar Rock Speaker comes with Bluetooth 5.0 technology and can last up to 10 hours on battery. It is designed to withstand the elements. It is charged with sunlight and has a light that turns on when low light condition is detected.
This rock speaker measures 8″ x 6.3″ x 8.7″. It is designed to blend into your garden.[where to get it]